Update Dockerfile

.devcontainer/Dockerfile

@@ -7,6 +7,23 @@
 # https://github.com/microsoft/vscode-dev-containers/tree/v0.43.0/containers/javascript-node-12/.devcontainer/Dockerfile
 FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:0.43-12
 
+# The image referenced above includes a non-root user with sudo access. Add 
+# the "remoteUser" property to devcontainer.json to use it. On Linux, the container 
+# user's GID/UIDs will be updated to match your local UID/GID when using the image
+# or dockerFile property. Update USER_UID/USER_GID below if you are using the
+# dockerComposeFile property or want the image itself to start with different ID
+# values. See https://aka.ms/vscode-remote/containers/non-root-user for details.
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+ARG USERNAME=node
+
+# [Optional] Update UID/GID if needed
+RUN if [ "$USER_GID" != "1000" ] || [ "$USER_UID" != "1000" ]; then \
+        && groupmod --gid $USER_GID $USERNAME \
+        && usermod --uid $USER_UID --gid $USER_GID $USERNAME \
+        && chown -R $USER_UID:$USER_GID /home/$USERNAME; \
+    fi
+
 # *************************************************************
 # * Uncomment this section to use RUN instructions to install *
 # * any needed dependencies after executing "apt-get update". *
@@ -24,4 +41,3 @@ FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:0.43-12
 
 # Uncomment to default to non-root user
 # USER $USER_UID
-